Governor



Jan. 7, 1941. I D J. PARKER 2,227,668

GOVERNOR Filed Aug, 11, 1938 Inventor Jam'eZJ/"arier v A iiorneys Patented Jan. 7, 1941 UNITED STATES PATENT OFFICE per cent to Jules F.

Bonal, Flagstaff, Ariz.

Application August 11, 1938, Serial No. 224,368

1 Claim.

The present invention relates to new and useful improvements in governors particularly for internal combustion engines and has for its primary object to provide, in a manner as hereinafter set forth, a device of this character which is operable by suction or vacuum, preferably but not necessarily from the intake manifold of the engine.

Another very important object of the invention is to provide a governor of the aforementioned character embodying a novel construction, combination and arrangement of parts through the medium of which the device may be conveniently and accurately adjusted to function at different speeds.

Other objects of the invention are to provide a governor of the character described which will be comparatively simple in construction, strong, durable, highly efficient andreliable in use, com- 20 pact and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specifica- 25 ti-on, taken in connection with the accompanying drawing wherein like characters of reference designate corersponding parts throughout the several views, and wherein:

Figure 1 is a View in vertical section through a governor constructed in accordance with the present invention.

Figure 2 is a View in horizontal section, taken substantially on the line 2-2 of Fig. 1.

Referring now to the drawing in detail, it will 35 be seen that the embodiment of the invention which has been illustrated comprises a casing of suitable material which is designated generally by the reference numeral I. As illustrated to advantage in Fig. 1 of the drawing, the casing I includes a vacuum chamber 2 which is provided with an external apertured flange 3. Suitable means is provided on the bottom of the vacuum chamber 2, as at 4, for connecting a suction pipe (not shown), preferably from the intake manifold of the engine, to the vacuum chamber 2.

The casing I further includes what may be referred to as a cap 5 of smaller diameter than the vacuum chamber 2. The cap 5 comprises a comparatively wide, apertured flange B which is removably secured to the flange 3 of the vacuum chamber 2 through the medium of bolts or other suitable elements I. Rising from the cap 5 is an integral neck 8.

The reference numeral 9 designates a diaphragm of suitable material which is mounted in the casing I and secured between the flanges 3 and 6. Connected to the diaphragm 9 for actuation thereby and extending through the neck 8 of the cap is a rod ID. The rod I0 is secured at one end to the diaphragm 9 through the medium of nuts H and washers l2.

Split collars l3 and M are adjustably mounted on the rod ID at spaced points. Cups l5 and It are slidably mounted on the rod l0 and engaged with the collars l3 and M. It will be noted that the collar I6 is engageable on the neck 8 and that the collar I4 is located within said neck. A coil spring I! encircles the rod IE] and has its ends engaged in the cups l5 and I6. Threadedly mounted on the upper or outer end portion of the rod I0 is a fork [8 for connection in any suitable manner with the throttle valve of the engine.

It is thought that the operation of the device will be readily apparent from a consideration of the foregoing. When the load on the engine increases the suction in the vacuum chamber 2 decreases thus permitting the spring I! to main tain the diaphragm 9 in substantially the position shown in Fig. l of the drawing With the throttle valve of the engine open for the passage of the fuel charge from the carburetor to the combustion chambers. As the load on the engine decreases the suction in. the chamber 2 increases with the result that the diaphragm 9 is actuated against the tension of the coil spring l! and the throttle valve is caused to move toward closed. position. By adjusting the collars l3 and M on the rod Ill, thereby increasing or decreasing the tension of the coil spring ll, the engine speed at which the diaphragm 9 will be operated may be controlled as desired. The diaphragm 9 will permit the rod Ill, with the collar [4 thereon, to be manually pulled outwardly in order that access may be had to said collar It for adjusting same. The construction and arrangement of the casing I, with the comparatively small cap 5, is such as to permit greater flexing of the diaphragm 9 toward the vacuum chamber 2 than toward the cap 5.

It is believed that the many advantages of a governor constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

An internal combustion engine governor com prising a casing including a vacuum chamber for connection with an engine, said casing having an opening therein, a diaphragm mounted in the casing, a rod secured to the diaphragm for actuation thereby and operable in the opening, a pair of spaced split collars adjustably mounted on the rod, one of said collars being positioned within the casing, opposed cups slidably mounted on the rod and engaged with the collars, one of said cups resting on the casing over the opening, and a coil spring encircling the rod and engaged in the cups, and constituting means for yieldingly resisting movement of the diaphragm in one direction.

DANIEL J. PARKER. 

